@article{ref1,
title="Analysis of pilot assessment of workload",
journal="Aerospace medicine",
year="1972",
author="Krzanowski, W. J. and Nicholson, A. N.",
volume="43",
number="9",
pages="993-997",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}